i installed my nav tv a couple months ago and i thought that the windshield would have been the more logical place to mount the antenna, but they said to mount it behind the bumper, my reception isnt too bad but once i start moving it gets a little shaky.....i wonder, if i move it in the front if it would be better?, oh yeah i also connected a dvd player to it also....its really cool watching the news or a movie while i wait for my girlfriend to get out of work.